Chain lock



A. T. BECKER.

CHMN LOCK.

APPLlcATloN FILED rwzo. 1922.

Patented Apr. 25, 1922.

w Alfrecfl: Becket' ALFRED T.- BEeKE'n, or Hierin-AND; immers;

Mimes-5;

fastening or locl' of this sort that will be eficeifit in use but thoroughly simple in construct-ien. Y Y y Anotherl object is to provide 'a fastening device that will be carried by one member of the chain so that it win not 'be 10st when the chain is removed.

'other objects winne apparent fram the.

following detailed description andthey 'ap-k pended claims; 1 i

In the drawingsf Figure 1 is a perspective viewV of the hdevice in use, showing a part of the wheel and chain applied thereto. l

Figure 2 is a side view Vof the lock, with the movable member thereof shown in two.

positions.

yFigure 3 is an edge view of the device in locked position. Y

Figure 4 is a section on the line 4-#4 of Figure 2 showing an intermediate positionV of the movable member. l

Figure 5 is a similar view showing the parts in looked position. f

"There is illustrated a portion of an automobile wheel A with the usual tire B andy tire chain C provided with the short chains D connected thereto and to a similar chainV on the opposite side of the tire. These parts are old and well Vknown and may be of any desired type. They form no part of myin-..

vention in themselves.

VThe lock member has a'body portion 1 terminating at one end in an ear 2. vOne link 3 of the chain is formed with an open end forming ears 3', and asuitable fastening bolt or similar member 4 is passed through the ears 2 and 3f, thus fastening the lock to the chain at one end. n The` opposite end of the body portion 1' is bifurcated, forming ears 5, between which is 'pivoted on a pin 6 the movable locking mem- CHAIN Locri.. l

specification' of Letters Patent. AIapueaea mea 'rb'fry ao; reza 'serial n. 5er/,est

fia object f invention isfe'prvifiea .the claims. Y

Patented Aar. as, ieee,

bei" 7. The pivot pin 6 passes throughone"1 ma er a Ushapedzedjs of the member '7,

iihioh 'enables theimember 7 to lie parallel with and closely adjacent to the body portion: 1 when it is in locking position.{ The opposite end ofV the member 7 has van 'extension 9 at right angles thereto. 'This is adapted to hook through a link 10 of the chain, -as clearlyillustrated in the drawings.

Near one end of. the body portion 1 'a groove or recessll isprovided in the side thereof. This is slightly yifider'fl than the .eX- tens'on 9 'at one V,side and .dares out as 4shown in' Figure 2, having a straight lside 12 vand an obliquejside 13. The extension 9 yterminatesiaajbeve-1ed end 14 which has, adjacent thereto a -s'houlder 1 5 asshownin Figuresf4 and .A spriag piace 161s attached@ the body portion 1 by suidablevfasteningsvv 1 7 and c'e' ss 11.

The dimensions ofthe parts are such that when die excessen 9 is. assai-1.a in ,the recess ii che Shea-1d@ '15mn-,bearagainst die Vsideof the recess oppositeto the plated@y Y and the thickness of this end of the eXtension is greater than the norma] space betweenthe plate land the'opposingwall of thelreees's 11. As they vextension entersV the recess, the free end of they plate lwill therefore be forced outwardly. As soon as the thick end of the extension passes out of the recess, yasshown in Figure 5 the plate 16 will snap back forcing the shoulder 15 to catch behind thebody 1 and holding the `member 7 vagainst accidental withdrawal.

When it vis desired to removel the device,

the plate 16v can be lifted` in any desired way enough to permit the extension 9 tobe forced out of the recess. The bevels 14 on Vthe end.` of the extension 9 facilitates its` entry into the recess. When the parts are in locking position, the extension 9 liesparallel 'Y to and'in substantial engagementwith the' wall 12 ofthe recess While I have illustrated my device as..

used for locking an automobile chain, it is obvious that it is not limited to thisuse, and that it might be employed tofastenl the ends of a chain, or one end with an intermediatelink, wherever'desired. It can `also be used v to fasten other similar members, and in structure' and use is to be limited-only by I claim asmyinvention: j l. A

chain lock comprisingY a`body1`porfil tion adapted to be attached at one end to a chain, and having a recess therein, a locking member attached to the other end ofV the body portion and having a free end to enter said recess, a shoulder on said free end, a spring plate forming one Wall ot the recess and engaging` the locking member to .Force lthe body portion after passing through the recess.

3. A chain lock comprising a. body portion adapted to be fastened to a chain, and having' a recess therein, a locking member pivoted to the'body portion at one end and having' a free beveled end to enter the recess, a shoul- Vder affording a ,detent on the free end, a

spring plate attached to the body portion and having a free end overlying` the recess to form a Wall thereof and engaging the locking member to force the detent into engagement With the body portion after it has passed through theI recessand thereby prevent accidental Withdrawal of the locking member.

4i. A chain -lock comprising a. body por-l tion adapted to be fastened to a'chain, a locking memberV pivoted to one end thereof and adapted to pass through another' link ot the chain, the body portion being' provided With a recess, andthe locking` member having;` a detent end adapted t0 pass through the recess and engage the body portion, and a.-

sp ing plate overlyingthe recess to prevent accidental disengagement of the locking member. f

5. A chain lock comprising a body portion providedfwith a recess, a locking member having oneend pivoted to thel body member and a detent on-the other end adaptedto pass through the recess and engage the body portion, and a springvplate attached tothe body portion and overlying the vrecess to force the detent into engaging position amil prevent accidental Withdrawal of the lockg ing member. y

6. A chain lock comprising a body portion having an opening therethrough, aloelring member ,adapted to engage a link and which is pivoted to the body portion and has a d'etent at one end'adapted to pass through said opening, and spring means for pressing said detent into engagement With the body portion and preventing4 accidental Withdrawal ofthe locking` member.'

ln testimony whereof, I have hereunto *subscribed my name.

ALFRED r. BECKER. 

